/*
 * Copyright (C) 2012 Facebook, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.facebook.config;

import java.io.File;
import org.json.JSONException;
import org.json.JSONObject;

public class ExpandedConfFileJSONProvider extends AbstractExpandedConfJSONProvider {
  public ExpandedConfFileJSONProvider(File root) {
    super(root.getAbsolutePath());
  }

  @Override
  protected String resolve(String parent, String config) {
    File file = new File(config);
    if (file.isAbsolute() || parent == null) {
      return file.getAbsolutePath();
    }

    // relative path
    File parentFile = new File(parent);
    file = new File(parentFile.getParent(), config);

    return file.getAbsolutePath();
  }

  @Override
  protected JSONObject load(String config) throws JSONException {
    File configFile = new File(config);

    return new FileJSONProvider(configFile).get();
  }
}
